کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10559459 | 969627 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Indium determination using slotted quartz tube-atom trap-flame atomic absorption spectrometry and interference studies
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Sensitivity enhancement of indium determination by flame atomic absorption spectrometry (FAAS) was achieved; using a slotted quartz tube (SQT-FAAS) and slotted quartz tube atom trap (SQT-AT-FAAS). SQT was used as an atom trap (AT) where the analyte is accumulated in its inner wall prior to re-atomization. The signal is formed after re-atomization of analyte on the trap surface by introduction of 10 μL of isobutyl methyl ketone (IBMK). Sensitivity was improved 400 times using SQT-AT-FAAS system with respect to conventional FAAS and 279 times with respect to SQT-FAAS without any collection. Characteristic concentration (C0) and limit of detection values were found to be 3.63 ng mLâ1 and 2.60 ng mLâ1, respectively, using a sample flow rate of 7.0 mL minâ1 and a collection period of 5.0 min. In addition, interference effects of some elements on indium signal were studied. In order to characterize indium species trapped, X-ray Photoelectron Spectrometry (XPS) was utilized and it was found that indium was collected on the inner surface of SQT as In2O3. The accuracy of the procedure was checked to determine indium in the standard reference material (Montana Soil, SRM 2710).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 85, Issue 4, 30 September 2011, Pages 1786-1791
Journal: Talanta - Volume 85, Issue 4, 30 September 2011, Pages 1786-1791
نویسندگان
Yasin Arslan, Erdal Kendüzler, O. Yavuz Ataman,